andrew@webrtc.org | a7b57da | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #include <stdlib.h> |
| 12 | |
pbos@webrtc.org | abf0cd8 | 2013-05-27 09:49:58 +0000 | [diff] [blame] | 13 | #include "testing/gtest/include/gtest/gtest.h" |
| 14 | #include "webrtc/common_audio/vad/vad_unittest.h" |
| 15 | #include "webrtc/typedefs.h" |
andrew@webrtc.org | a7b57da | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 16 | |
| 17 | extern "C" { |
pbos@webrtc.org | abf0cd8 | 2013-05-27 09:49:58 +0000 | [diff] [blame] | 18 | #include "webrtc/common_audio/vad/vad_core.h" |
| 19 | #include "webrtc/common_audio/vad/vad_sp.h" |
andrew@webrtc.org | a7b57da | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 20 | } |
| 21 | |
| 22 | namespace { |
| 23 | |
| 24 | TEST_F(VadTest, vad_sp) { |
| 25 | VadInstT* self = reinterpret_cast<VadInstT*>(malloc(sizeof(VadInstT))); |
| 26 | const int kMaxFrameLenSp = 960; // Maximum frame length in this unittest. |
| 27 | int16_t zeros[kMaxFrameLenSp] = { 0 }; |
| 28 | int32_t state[2] = { 0 }; |
| 29 | int16_t data_in[kMaxFrameLenSp]; |
| 30 | int16_t data_out[kMaxFrameLenSp]; |
| 31 | |
| 32 | // We expect the first value to be 1600 as long as |frame_counter| is zero, |
| 33 | // which is true for the first iteration. |
| 34 | static const int16_t kReferenceMin[32] = { |
| 35 | 1600, 720, 509, 512, 532, 552, 570, 588, |
| 36 | 606, 624, 642, 659, 675, 691, 707, 723, |
| 37 | 1600, 544, 502, 522, 542, 561, 579, 597, |
| 38 | 615, 633, 651, 667, 683, 699, 715, 731 |
| 39 | }; |
| 40 | |
| 41 | // Construct a speech signal that will trigger the VAD in all modes. It is |
| 42 | // known that (i * i) will wrap around, but that doesn't matter in this case. |
| 43 | for (int16_t i = 0; i < kMaxFrameLenSp; ++i) { |
| 44 | data_in[i] = (i * i); |
| 45 | } |
| 46 | // Input values all zeros, expect all zeros out. |
| 47 | WebRtcVad_Downsampling(zeros, data_out, state, kMaxFrameLenSp); |
| 48 | EXPECT_EQ(0, state[0]); |
| 49 | EXPECT_EQ(0, state[1]); |
| 50 | for (int16_t i = 0; i < kMaxFrameLenSp / 2; ++i) { |
| 51 | EXPECT_EQ(0, data_out[i]); |
| 52 | } |
| 53 | // Make a simple non-zero data test. |
| 54 | WebRtcVad_Downsampling(data_in, data_out, state, kMaxFrameLenSp); |
| 55 | EXPECT_EQ(207, state[0]); |
| 56 | EXPECT_EQ(2270, state[1]); |
| 57 | |
| 58 | ASSERT_EQ(0, WebRtcVad_InitCore(self)); |
| 59 | // TODO(bjornv): Replace this part of the test with taking values from an |
| 60 | // array and calculate the reference value here. Make sure the values are not |
| 61 | // ordered. |
| 62 | for (int16_t i = 0; i < 16; ++i) { |
| 63 | int16_t value = 500 * (i + 1); |
| 64 | for (int j = 0; j < kNumChannels; ++j) { |
| 65 | // Use values both above and below initialized value. |
| 66 | EXPECT_EQ(kReferenceMin[i], WebRtcVad_FindMinimum(self, value, j)); |
| 67 | EXPECT_EQ(kReferenceMin[i + 16], WebRtcVad_FindMinimum(self, 12000, j)); |
| 68 | } |
| 69 | self->frame_counter++; |
| 70 | } |
| 71 | |
| 72 | free(self); |
| 73 | } |
| 74 | } // namespace |